diff options
Diffstat (limited to 'src/jcgp/backend/modules/fitness')
-rw-r--r-- | src/jcgp/backend/modules/fitness/DigitalCircuit.java | 18 | ||||
-rw-r--r-- | src/jcgp/backend/modules/fitness/Problem.java | 20 | ||||
-rw-r--r-- | src/jcgp/backend/modules/fitness/SymbolicRegression.java | 18 | ||||
-rw-r--r-- | src/jcgp/backend/modules/fitness/TestCaseProblem.java | 114 |
4 files changed, 0 insertions, 170 deletions
diff --git a/src/jcgp/backend/modules/fitness/DigitalCircuit.java b/src/jcgp/backend/modules/fitness/DigitalCircuit.java deleted file mode 100644 index 8677d5f..0000000 --- a/src/jcgp/backend/modules/fitness/DigitalCircuit.java +++ /dev/null @@ -1,18 +0,0 @@ -package jcgp.backend.modules.fitness; - -import jcgp.backend.function.BitwiseLogic; -import jcgp.backend.resources.Resources; - -public class DigitalCircuit extends TestCaseProblem<Integer> { - - public DigitalCircuit(Resources resources) { - super(resources); - functionSet = new BitwiseLogic(); - } - - @Override - public String toString() { - return "Digital circuit"; - } - -} diff --git a/src/jcgp/backend/modules/fitness/Problem.java b/src/jcgp/backend/modules/fitness/Problem.java deleted file mode 100644 index 1e70c13..0000000 --- a/src/jcgp/backend/modules/fitness/Problem.java +++ /dev/null @@ -1,20 +0,0 @@ -package jcgp.backend.modules.fitness; - -import jcgp.backend.function.FunctionSet; -import jcgp.backend.modules.Module; -import jcgp.backend.population.Chromosome; -import jcgp.backend.population.Population; -import jcgp.backend.resources.Resources; - -public abstract class Problem implements Module { - - protected FunctionSet functionSet; - - public abstract void evaluate(Population population, Resources resources); - - public FunctionSet getFunctionSet() { - return functionSet; - } - - public abstract boolean isPerfectSolution(Chromosome fittest); -} diff --git a/src/jcgp/backend/modules/fitness/SymbolicRegression.java b/src/jcgp/backend/modules/fitness/SymbolicRegression.java deleted file mode 100644 index cb9d1a7..0000000 --- a/src/jcgp/backend/modules/fitness/SymbolicRegression.java +++ /dev/null @@ -1,18 +0,0 @@ -package jcgp.backend.modules.fitness; - -import jcgp.backend.function.IntegerArithmetic; -import jcgp.backend.resources.Resources; - -public class SymbolicRegression extends TestCaseProblem<Integer> { - - public SymbolicRegression(Resources resources) { - super(resources); - functionSet = new IntegerArithmetic(); - } - - @Override - public String toString() { - return "Symbolic regression"; - } - -} diff --git a/src/jcgp/backend/modules/fitness/TestCaseProblem.java b/src/jcgp/backend/modules/fitness/TestCaseProblem.java deleted file mode 100644 index 7dd24af..0000000 --- a/src/jcgp/backend/modules/fitness/TestCaseProblem.java +++ /dev/null @@ -1,114 +0,0 @@ -package jcgp.backend.modules.fitness; - -import java.util.ArrayList; -import java.util.List; - -import jcgp.backend.population.Chromosome; -import jcgp.backend.population.Population; -import jcgp.backend.resources.Resources; -import jcgp.backend.resources.parameters.IntegerParameter; -import jcgp.backend.resources.parameters.Parameter; - -/** - * - * This fitness function module implements a simple test case evaluator. - * - * A TestCase object is a - * - * - * @author Eduardo Pedroni - * - */ -public abstract class TestCaseProblem<U> extends Problem { - - public static class TestCase<T> { - - private T[] inputs; - private T[] outputs; - - public TestCase(T[] inputs, T[] outputs) { - this.inputs = inputs; - this.outputs = outputs; - } - - public T getInput(int index) { - return inputs[index]; - } - - public T getOutput(int index) { - return outputs[index]; - } - - public T[] getInputs() { - return inputs; - } - - public T[] getOutputs() { - return outputs; - } - } - - private ArrayList<TestCase<U>> testCases; - private IntegerParameter maxFitness; - - public TestCaseProblem(Resources resources) { - super(); - - maxFitness = new IntegerParameter(0, "Max fitness", true, false) { - @Override - public void validate(Number newValue) { - // blank - } - }; - testCases = new ArrayList<TestCase<U>>(); - } - - - @Override - public void evaluate(Population population, Resources resources) { - // for every chromosome in the population - for (int i = 0; i < resources.populationSize(); i++) { - // assume an initial fitness of 0 - int fitness = 0; - // for each test case - for (int t = 0; t < testCases.size(); t++) { - population.getChromosome(i).setInputs(testCases.get(t).getInputs()); - // check each output - for (int o = 0; o < resources.outputs(); o++) { - if (population.getChromosome(i).getOutput(o).calculate() == testCases.get(t).getOutput(o)) { - fitness++; - } - } - } - // assign the resulting fitness to the respective individual - population.getChromosome(i).setFitness(fitness); - } - } - - @Override - public Parameter<?>[] getLocalParameters() { - return new Parameter[]{maxFitness}; - } - - private int getMaxFitness() { - int fitness = 0; - - for (TestCase<U> tc : testCases) { - fitness += tc.getOutputs().length; - } - - return fitness; - } - - public void setTestCases(List<TestCase<U>> testCases) { - this.testCases.clear(); - this.testCases.addAll(testCases); - maxFitness.set(getMaxFitness()); - } - - @Override - public boolean isPerfectSolution(Chromosome fittest) { - return fittest.getFitness() >= maxFitness.get(); - } -} - |